In a heavy 6 quart Dutch oven, heat the vegetable oil over moderately low heat for 1 minute; add the onion, carrot, garlic, and green pepper, and cook, covered, for 10 minutes or until the vegetables are soft.
Add the lentils, chili powder, cumin, bay leaf, cayenne pepper, and tomatoes, along with a small amount of water if the mixture appears thick.
Cover and simmer for 10 minutes.
Add the chick peas, black beans, and pinto beans, cover, and simmer for 30 minutes or until the lentils are tender.
Before the chili is done, cook the rice following package directions, omitting the salt.
Ladle the chili over it and serve with a green salad.